"Tây Vu Vương" is a very old story from Vietnam that people used to tell long, long ago. It's about a man who was very brave and wanted to help his friends and family.
In the story, Tây Vu Vương lived a long time ago when there were no big cities or cars or TVs like we have now. He lived in a small village in Vietnam where everyone knew each other.
One day, Tây Vu Vương heard that his friend, the king, was in trouble. The king was fighting in a big battle against a rival kingdom, and he needed help. So Tây Vu Vương got his sword and his horse and rode to the battlefield to help his friend.
Even though Tây Vu Vương was just one person, he was very strong and brave. He fought hard and helped the king win the battle. From then on, he became known as a hero in Vietnam.
Tây Vu Vương wasn't just brave - he was also very kind. He helped people in his village who were sick or needed help with their crops. He always tried to do the right thing, even when it was hard.
So when people tell stories about Tây Vu Vương, they talk about how brave and kind he was. And even today, he is still remembered as a symbol of strength and courage in Vietnam.